describe("unittests:: services:: PreProcessFile:", () => {
    function test(sourceText: string, readImportFile: boolean, detectJavaScriptImports: boolean, expectedPreProcess: ts.PreProcessedFileInfo): void {
        const resultPreProcess = ts.preProcessFile(sourceText, readImportFile, detectJavaScriptImports);

        assert.equal(resultPreProcess.isLibFile, expectedPreProcess.isLibFile, "Pre-processed file has different value for isLibFile. Expected: " + expectedPreProcess.isLibFile + ". Actual: " + resultPreProcess.isLibFile);

        checkFileReferenceList("Imported files", expectedPreProcess.importedFiles, resultPreProcess.importedFiles);
        checkFileReferenceList("Referenced files", expectedPreProcess.referencedFiles, resultPreProcess.referencedFiles);
        checkFileReferenceList("Type reference directives", expectedPreProcess.typeReferenceDirectives, resultPreProcess.typeReferenceDirectives);
        checkFileReferenceList("Lib reference directives", expectedPreProcess.libReferenceDirectives, resultPreProcess.libReferenceDirectives);

        assert.deepEqual(resultPreProcess.ambientExternalModules, expectedPreProcess.ambientExternalModules);
    }

    function checkFileReferenceList(kind: string, expected: ts.FileReference[], actual: ts.FileReference[]) {
        if (expected === actual) {
            return;
        }
        assert.deepEqual(actual, expected, `Expected [${kind}] ${JSON.stringify(expected)}, got ${JSON.stringify(actual)}`);
    }

    describe("Test preProcessFiles,", () => {
        it("Correctly return referenced files from triple slash", () => {
            test("///<reference path = \"refFile1.ts\" />" + "\n" + "///<reference path =\"refFile2.ts\"/>" + "\n" + "///<reference path=\"refFile3.ts\" />" + "\n" + "///<reference path= \"..\\refFile4d.ts\" />",
                /*readImportFile*/ true,
                /*detectJavaScriptImports*/ false,
                {
                    referencedFiles: [{ fileName: "refFile1.ts", pos: 22, end: 33 }, { fileName: "refFile2.ts", pos: 59, end: 70 },
                        { fileName: "refFile3.ts", pos: 94, end: 105 }, { fileName: "..\\refFile4d.ts", pos: 131, end: 146 }],
                    importedFiles: <ts.FileReference[]>[],
                    typeReferenceDirectives: [],
                    libReferenceDirectives: [],
                    ambientExternalModules: undefined,
                    isLibFile: false
                });
        });

        it("Do not return reference path because of invalid triple-slash syntax", () => {
            test("///<reference path\"refFile1.ts\" />" + "\n" + "///<reference path =\"refFile2.ts\">" + "\n" + "///<referencepath=\"refFile3.ts\" />" + "\n" + "///<reference pat= \"refFile4d.ts\" />",
                /*readImportFile*/ true,
                /*detectJavaScriptImports*/ false,
                {
                    referencedFiles: <ts.FileReference[]>[],
                    importedFiles: <ts.FileReference[]>[],
                    typeReferenceDirectives: [],
                    libReferenceDirectives: [],
                    ambientExternalModules: undefined,
                    isLibFile: false
                });
        });

        it("Do not return reference path of non-imports", () => {
            test("Quill.import('delta');",
                /*readImportFile*/ true,
                /*detectJavaScriptImports*/ false,
                {
                    referencedFiles: <ts.FileReference[]>[],
                    importedFiles: <ts.FileReference[]>[],
                    typeReferenceDirectives: [],
                    libReferenceDirectives: [],
                    ambientExternalModules: undefined,
                    isLibFile: false
                });
        });

        it("Do not return reference path of nested non-imports", () => {
            test("a.b.import('c');",
                /*readImportFile*/ true,
                /*detectJavaScriptImports*/ false,
                {
                    referencedFiles: <ts.FileReference[]>[],
                    importedFiles: <ts.FileReference[]>[],
                    typeReferenceDirectives: [],
                    libReferenceDirectives: [],
                    ambientExternalModules: undefined,
                    isLibFile: false
                });
        });

        it("Correctly return imported files", () => {
            test("import i1 = require(\"r1.ts\"); import i2 =require(\"r2.ts\"); import i3= require(\"r3.ts\"); import i4=require(\"r4.ts\"); import i5 = require  (\"r5.ts\");",
                /*readImportFile*/ true,
                /*detectJavaScriptImports*/ false,
                {
                    referencedFiles: <ts.FileReference[]>[],
                    typeReferenceDirectives: [],
                    libReferenceDirectives: [],
                    importedFiles: [{ fileName: "r1.ts", pos: 20, end: 25 }, { fileName: "r2.ts", pos: 49, end: 54 }, { fileName: "r3.ts", pos: 78, end: 83 },
                        { fileName: "r4.ts", pos: 106, end: 111 }, { fileName: "r5.ts", pos: 138, end: 143 }],
                    ambientExternalModules: undefined,
                    isLibFile: false
                });
        });

        it("Do not return imported files if readImportFiles argument is false", () => {
            test("import i1 = require(\"r1.ts\"); import i2 =require(\"r2.ts\"); import i3= require(\"r3.ts\"); import i4=require(\"r4.ts\"); import i5 = require  (\"r5.ts\");",
                /*readImportFile*/ false,
                /*detectJavaScriptImports*/ false,
                {
                    referencedFiles: <ts.FileReference[]>[],
                    typeReferenceDirectives: [],
                    libReferenceDirectives: [],
                    importedFiles: <ts.FileReference[]>[],
                    ambientExternalModules: undefined,
                    isLibFile: false
                });
        });

        it("Do not return import path because of invalid import syntax", () => {
            test("import i1 require(\"r1.ts\"); import = require(\"r2.ts\") import i3= require(\"r3.ts\"); import i5",
                /*readImportFile*/ true,
                /*detectJavaScriptImports*/ false,
                {
                    referencedFiles: <ts.FileReference[]>[],
                    typeReferenceDirectives: [],
                    libReferenceDirectives: [],
                    importedFiles: [{ fileName: "r3.ts", pos: 73, end: 78 }],
                    ambientExternalModules: undefined,
                    isLibFile: false
                });
        });

        it("Correctly return referenced files and import files", () => {
            test("///<reference path=\"refFile1.ts\" />" + "\n" + "///<reference path =\"refFile2.ts\"/>" + "\n" + "import i1 = require(\"r1.ts\"); import i2 =require(\"r2.ts\");",
                /*readImportFile*/ true,
                /*detectJavaScriptImports*/ false,
                {
                    referencedFiles: [{ fileName: "refFile1.ts", pos: 20, end: 31 }, { fileName: "refFile2.ts", pos: 57, end: 68 }],
                    typeReferenceDirectives: [],
                    libReferenceDirectives: [],
                    importedFiles: [{ fileName: "r1.ts", pos: 92, end: 97 }, { fileName: "r2.ts", pos: 121, end: 126 }],
                    ambientExternalModules: undefined,
                    isLibFile: false
                });
        });

        it("Correctly return referenced files and import files even with some invalid syntax", () => {
            test("///<reference path=\"refFile1.ts\" />" + "\n" + "///<reference path \"refFile2.ts\"/>" + "\n" + "import i1 = require(\"r1.ts\"); import = require(\"r2.ts\"); import i2 = require(\"r3.ts\");",
                /*readImportFile*/ true,
                /*detectJavaScriptImports*/ false,
                {
                    referencedFiles: [{ fileName: "refFile1.ts", pos: 20, end: 31 }],
                    typeReferenceDirectives: [],
                    libReferenceDirectives: [],
                    importedFiles: [{ fileName: "r1.ts", pos: 91, end: 96 }, { fileName: "r3.ts", pos: 148, end: 153 }],
                    ambientExternalModules: undefined,
                    isLibFile: false
                });
        });

        it("Correctly return ES6 imports", () => {
            test("import * as ns from \"m1\";" + "\n" +
                "import def, * as ns from \"m2\";" + "\n" +
                "import def from \"m3\";" + "\n" +
                "import {a} from \"m4\";" + "\n" +
                "import {a as A} from \"m5\";" + "\n" +
                "import {a as A, b, c as C} from \"m6\";" + "\n" +
                "import def , {a, b, c as C} from \"m7\";" + "\n",
            /*readImportFile*/ true,
            /*detectJavaScriptImports*/ false,
            {
                referencedFiles: [],
                typeReferenceDirectives: [],
                libReferenceDirectives: [],
                importedFiles: [
                    { fileName: "m1", pos: 20, end: 22 },
                    { fileName: "m2", pos: 51, end: 53 },
                    { fileName: "m3", pos: 73, end: 75 },
                    { fileName: "m4", pos: 95, end: 97 },
                    { fileName: "m5", pos: 122, end: 124 },
                    { fileName: "m6", pos: 160, end: 162 },
                    { fileName: "m7", pos: 199, end: 201 }
                ],
                ambientExternalModules: undefined,
                isLibFile: false
            });
        });

        it("Correctly return ES6 exports", () => {
            test("export * from \"m1\";" + "\n" +
                "export {a} from \"m2\";" + "\n" +
                "export {a as A} from \"m3\";" + "\n" +
                "export {a as A, b, c as C} from \"m4\";" + "\n",
            /*readImportFile*/ true,
            /*detectJavaScriptImports*/ false,
            {
                referencedFiles: [],
                typeReferenceDirectives: [],
                libReferenceDirectives: [],
                importedFiles: [
                    { fileName: "m1", pos: 14, end: 16 },
                    { fileName: "m2", pos: 36, end: 38 },
                    { fileName: "m3", pos: 63, end: 65 },
                    { fileName: "m4", pos: 101, end: 103 },
                ],
                ambientExternalModules: undefined,
                isLibFile: false
            });
        });

        it("Correctly handles import types", () => {
            test("import type * as ns from \"m1\";" + "\n" +
                "import type def, * as ns from \"m2\";" + "\n" +
                "import type def from \"m3\";" + "\n" +
                "import type {a} from \"m4\";" + "\n" +
                "import type {a as A} from \"m5\";" + "\n" +
                "import type {a as A, b, c as C} from \"m6\";" + "\n" +
                "import type def , {a, b, c as C} from \"m7\";" + "\n" +
                "import type from \"m8\";" + "\n" +
                "import type T = require(\"m9\");" + "\n" +
                "import type = require(\"m10\");" + "\n" +
                "export import type T = require(\"m11\");" + "\n" +
                "export import type = require(\"m12\");" + "\n",
            /*readImportFile*/ true,
            /*detectJavaScriptImports*/ false,
            {
                referencedFiles: <ts.FileReference[]>[],
                typeReferenceDirectives: [],
                libReferenceDirectives: [],
                importedFiles: [
                    { fileName: "m1", pos: 25, end: 27 },
                    { fileName: "m2", pos: 61, end: 63 },
                    { fileName: "m3", pos: 88, end: 90 },
                    { fileName: "m4", pos: 115, end: 117 },
                    { fileName: "m5", pos: 147, end: 149 },
                    { fileName: "m6", pos: 190, end: 192 },
                    { fileName: "m7", pos: 234, end: 236 },
                    { fileName: "m8", pos: 257, end: 259 },
                    { fileName: "m9", pos: 287, end: 289 },
                    { fileName: "m10", pos: 316, end: 319 },
                    { fileName: "m11", pos: 355, end: 358 },
                    { fileName: "m12", pos: 392, end: 395 },
                ],
                ambientExternalModules: undefined,
                isLibFile: false
            });
        });

        it("Correctly handles export types", () => {
            test("export type * from \"m1\";" + "\n" +
                "export type {a} from \"m2\";" + "\n" +
                "export type {a as A} from \"m3\";" + "\n" +
                "export type {a as A, b, c as C} from \"m4\";" + "\n",
            /*readImportFile*/ true,
            /*detectJavaScriptImports*/ false,
            {
                referencedFiles: <ts.FileReference[]>[],
                typeReferenceDirectives: [],
                libReferenceDirectives: [],
                importedFiles: [
                    { fileName: "m1", pos: 19, end: 21 },
                    { fileName: "m2", pos: 46, end: 48 },
                    { fileName: "m3", pos: 78, end: 80 },
                    { fileName: "m4", pos: 121, end: 123 },
                ],
                ambientExternalModules: undefined,
                isLibFile: false
            });
        });

        it("Correctly handles import type node", () => {
            test("const x: import(\"m1\") = { x: 0, y: 0 };" + "\n" +
                "let y: import(\"m2\").Bar.I = { a: \"\", b: 0 };" + "\n" +
                "let shim: typeof import(\"m3\") = { Bar: Bar2 };" + "\n",
            /*readImportFile*/ true,
            /*detectJavaScriptImports*/ false,
            {
                referencedFiles: [],
                typeReferenceDirectives: [],
                libReferenceDirectives: [],
                importedFiles: [
                    { fileName: "m1", pos: 16, end: 18 },
                    { fileName: "m2", pos: 54, end: 56 },
                    { fileName: "m3", pos: 109, end: 111 },
                ],
                ambientExternalModules: undefined,
                isLibFile: false
            });
        });

        it("Correctly return ambient external modules", () => {
            test(`
               declare module A {}
               declare module "B" {}
               function foo() {
               }
               `,
            /*readImportFile*/ true,
            /*detectJavaScriptImports*/ false,
            {
                referencedFiles: [],
                typeReferenceDirectives: [],
                libReferenceDirectives: [],
                importedFiles: [],
                ambientExternalModules: ["B"],
                isLibFile: false
            });
        });

        it("Correctly handles export import declarations", () => {
            test("export import a = require(\"m1\");",
                /*readImportFile*/ true,
                /*detectJavaScriptImports*/ false,
                {
                    referencedFiles: [],
                    typeReferenceDirectives: [],
                    libReferenceDirectives: [],
                    importedFiles: [
                        { fileName: "m1", pos: 26, end: 28 }
                    ],
                    ambientExternalModules: undefined,
                    isLibFile: false
                });
        });
        it("Correctly handles export require calls in JavaScript files", () => {
            test(`
            export import a = require("m1");
            var x = require('m2');
            foo(require('m3'));
            var z = { f: require('m4') }
            `,
            /*readImportFile*/ true,
            /*detectJavaScriptImports*/ true,
            {
                referencedFiles: [],
                typeReferenceDirectives: [],
                libReferenceDirectives: [],
                importedFiles: [
                    { fileName: "m1", pos: 39, end: 41 },
                    { fileName: "m2", pos: 74, end: 76 },
                    { fileName: "m3", pos: 105, end: 107 },
                    { fileName: "m4", pos: 146, end: 148 },
                ],
                ambientExternalModules: undefined,
                isLibFile: false
            });
        });
        it("Correctly handles dependency lists in define([deplist]) calls in JavaScript files", () => {
            test(`
            define(["mod1", "mod2"], (m1, m2) => {
            });
            `,
            /*readImportFile*/ true,
            /*detectJavaScriptImports*/ true,
            {
                referencedFiles: [],
                typeReferenceDirectives: [],
                libReferenceDirectives: [],
                importedFiles: [
                    { fileName: "mod1", pos: 21, end: 25 },
                    { fileName: "mod2", pos: 29, end: 33 },
                ],
                ambientExternalModules: undefined,
                isLibFile: false
            });
        });

        it("Correctly handles dependency lists in define(modName, [deplist]) calls in JavaScript files", () => {
            test(`
            define("mod", ["mod1", "mod2"], (m1, m2) => {
            });
            `,
            /*readImportFile*/ true,
            /*detectJavaScriptImports*/ true,
            {
                referencedFiles: [],
                typeReferenceDirectives: [],
                libReferenceDirectives: [],
                importedFiles: [
                    { fileName: "mod1", pos: 28, end: 32 },
                    { fileName: "mod2", pos: 36, end: 40 },
                ],
                ambientExternalModules: undefined,
                isLibFile: false
            });
        });

        it("correctly handles augmentations in external modules - 1", () => {
            test(`
            declare module "../Observable" {
                interface I {}
            }

            export {}
            `,
            /*readImportFile*/ true,
            /*detectJavaScriptImports*/ false,
            {
                referencedFiles: [],
                typeReferenceDirectives: [],
                libReferenceDirectives: [],
                importedFiles: [
                    { fileName: "../Observable", pos: 28, end: 41 }
                ],
                ambientExternalModules: undefined,
                isLibFile: false
            });
        });
        it("correctly handles augmentations in external modules - 2", () => {
            test(`
            declare module "../Observable" {
                interface I {}
            }

            import * as x from "m";
            `,
            /*readImportFile*/ true,
            /*detectJavaScriptImports*/ false,
            {
                referencedFiles: [],
                typeReferenceDirectives: [],
                libReferenceDirectives: [],
                importedFiles: [
                    { fileName: "m", pos: 123, end: 124 },
                    { fileName: "../Observable", pos: 28, end: 41 }
                ],
                ambientExternalModules: undefined,
                isLibFile: false
            });
        });
        it("correctly handles augmentations in external modules - 3", () => {
            test(`
            declare module "../Observable" {
                interface I {}
            }

            import m = require("m");
            `,
            /*readImportFile*/ true,
            /*detectJavaScriptImports*/ false,
            {
                referencedFiles: [],
                typeReferenceDirectives: [],
                libReferenceDirectives: [],
                importedFiles: [
                    { fileName: "m", pos: 123, end: 124 },
                    { fileName: "../Observable", pos: 28, end: 41 }
                ],
                ambientExternalModules: undefined,
                isLibFile: false
            });
        });
        it("correctly handles augmentations in external modules - 4", () => {
            test(`
            declare module "../Observable" {
                interface I {}
            }
            namespace N {}
            export = N;
            `,
            /*readImportFile*/ true,
            /*detectJavaScriptImports*/ false,
            {
                referencedFiles: [],
                typeReferenceDirectives: [],
                libReferenceDirectives: [],
                importedFiles: [
                    { fileName: "../Observable", pos: 28, end: 41 }
                ],
                ambientExternalModules: undefined,
                isLibFile: false
            });
        });
        it("correctly handles augmentations in external modules - 5", () => {
            test(`
            declare module "../Observable" {
                interface I {}
            }
            namespace N {}
            export import IN = N;
            `,
            /*readImportFile*/ true,
            /*detectJavaScriptImports*/ false,
            {
                referencedFiles: [],
                typeReferenceDirectives: [],
                libReferenceDirectives: [],
                importedFiles: [
                    { fileName: "../Observable", pos: 28, end: 41 }
                ],
                ambientExternalModules: undefined,
                isLibFile: false
            });
        });
        it("correctly handles augmentations in external modules - 6", () => {
            test(`
            declare module "../Observable" {
                interface I {}
            }
            export let x = 1;
            `,
            /*readImportFile*/ true,
            /*detectJavaScriptImports*/ false,
            {
                referencedFiles: [],
                typeReferenceDirectives: [],
                libReferenceDirectives: [],
                importedFiles: [
                    { fileName: "../Observable", pos: 28, end: 41 }
                ],
                ambientExternalModules: undefined,
                isLibFile: false
            });
        });
        it ("correctly handles augmentations in ambient external modules - 1", () => {
            test(`
            declare module "m1" {
                export * from "m2";
                declare module "augmentation" {
                    interface I {}
                }
            }
            `,
            /*readImportFile*/ true,
            /*detectJavaScriptImports*/ false,
            {
                referencedFiles: [],
                typeReferenceDirectives: [],
                libReferenceDirectives: [],
                importedFiles: [
                    { fileName: "m2", pos: 65, end: 67 },
                    { fileName: "augmentation", pos: 102, end: 114 }
                ],
                ambientExternalModules: ["m1"],
                isLibFile: false
            });
        });
        it ("correctly handles augmentations in ambient external modules - 2", () => {
            test(`
            namespace M { var x; }
            import IM = M;
            declare module "m1" {
                export * from "m2";
                declare module "augmentation" {
                    interface I {}
                }
            }
            `,
            /*readImportFile*/ true,
            /*detectJavaScriptImports*/ false,
            {
                referencedFiles: [],
                typeReferenceDirectives: [],
                libReferenceDirectives: [],
                importedFiles: [
                    { fileName: "m2", pos: 127, end: 129 },
                    { fileName: "augmentation", pos: 164, end: 176 }
                ],
                ambientExternalModules: ["m1"],
                isLibFile: false
            });
        });
        it ("correctly recognizes type reference directives", () => {
            test(`
            /// <reference path="a"/>
            /// <reference types="a1"/>
            /// <reference path="a2"/>
            /// <reference types="a3"/>
            `,
            /*readImportFile*/ true,
            /*detectJavaScriptImports*/ false,
            {
                referencedFiles: [
                    { pos: 34, end: 35, fileName: "a" },
                    { pos: 112, end: 114, fileName: "a2" }
                ],
                typeReferenceDirectives: [
                    { pos: 73, end: 75, fileName: "a1" },
                    { pos: 152, end: 154, fileName: "a3" }
                ],
                libReferenceDirectives: [],
                importedFiles: [],
                ambientExternalModules: undefined,
                isLibFile: false
            });
        });
        it ("correctly recognizes lib reference directives", () => {
            test(`
            /// <reference path="a"/>
            /// <reference lib="a1"/>
            /// <reference path="a2"/>
            /// <reference lib="a3"/>
            `,
            /*readImportFile*/ true,
            /*detectJavaScriptImports*/ false,
            {
                referencedFiles: [
                    { pos: 34, end: 35, fileName: "a" },
                    { pos: 110, end: 112, fileName: "a2" }
                ],
                typeReferenceDirectives: [
                ],
                libReferenceDirectives: [
                    { pos: 71, end: 73, fileName: "a1" },
                    { pos: 148, end: 150, fileName: "a3" }
                ],
                importedFiles: [],
                ambientExternalModules: undefined,
                isLibFile: false
            });
        });

        it("Correctly handles dynamic imports with template literals", () => {
            test("const m1 = import('mod1');" + "\n" +
            "const m2 = import(`mod2`);" + "\n" +
            "Promise.all([import('mod3'), import(`mod4`)]);" + "\n" +
            "import(/* webpackChunkName: 'module5' */ `mod5`);" + "\n",
            /*readImportFile*/ true,
            /*detectJavaScriptImports*/ false,
            {
                referencedFiles: [],
                typeReferenceDirectives: [],
                libReferenceDirectives: [],
                importedFiles: [
                    { fileName: "mod1", pos: 18, end: 22 },
                    { fileName: "mod2", pos: 45, end: 49 },
                    { fileName: "mod3", pos: 74, end: 78 },
                    { fileName: "mod4", pos: 90, end: 94 },
                    { fileName: "mod5", pos: 142, end: 146 }
                ],
                ambientExternalModules: undefined,
                isLibFile: false
            });
        });

        it("Correctly handles require calls with template literals in JS files", () => {
            test("const m1 = require(`mod1`);" + "\n" +
            "f(require(`mod2`));" + "\n" +
            "const a = { x: require(`mod3`) };" + "\n",
            /*readImportFile*/ true,
            /*detectJavaScriptImports*/ true,
            {
                referencedFiles: [],
                typeReferenceDirectives: [],
                libReferenceDirectives: [],
                importedFiles: [
                    { fileName: "mod1", pos: 19, end: 23 },
                    { fileName: "mod2", pos: 38, end: 42 },
                    { fileName: "mod3", pos: 71, end: 75 }
                ],
                ambientExternalModules: undefined,
                isLibFile: false
            });
        });

        it("Correctly handles dependency lists in define(modName, [deplist]) calls with template literals in JS files", () => {
            test("define(`mod`, [`mod1`, `mod2`], (m1, m2) => {});",
            /*readImportFile*/ true,
            /*detectJavaScriptImports*/ true,
            {
                referencedFiles: [],
                typeReferenceDirectives: [],
                libReferenceDirectives: [],
                importedFiles: [
                    { fileName: "mod1", pos: 15, end: 19 },
                    { fileName: "mod2", pos: 23, end: 27 },
                ],
                ambientExternalModules: undefined,
                isLibFile: false
            });
        });
    });
});
